Technology

43AH consists of the ITU-T Rec. P57 Type 2 Ear Simulator and Type 3.2 Simplified Low-leak Pinna Simulator and is designed for making ITU-T standardized tests of telephone handsets, receivers and receiver/loudspeaker modules on the production line.

Besides the ear and pinna simulators, GRAS 43AH includes a detachable front-plate that can be machined to make well-defined testing on various receiver related items. A calibration adapter to be used with GRAS 42AA Pistonphone/GRAS 42AP Pistonphone is included.

43AH can also be delivered with customized front plates that will enable leakage-controlled testing according to your specific needs.

Specifications

Theoretical dynamic range lower limit with GRAS preamplifier

dB(A)

25

Theoretical dynamic range upper limit with GRAS CCP preamplifier

dB

150

Set sensitivity @ 250 Hz (±2 dB)

mV/Pa

12

Set sensitivity @ 250 Hz (±2 dB)

dB re 1V/Pa

-38.5

Resonance frequency

kHz

0.713

Temperature range, operation

°C / °F

-30 to 60 / -22 to 140

Temperature coefficient @250 Hz

dB/°C / dB/°F

-0.01 / -0.006

Humidity range non condensing

% RH

0 to 80

ANSI standard

S3.7

ITU-T recommondations

P.57 Type 1

CE/RoHS compliant/WEEE registered

Yes/Yes/Yes

Connector type

3 m 7-pin LEMO

Weight

g / oz

0.8 / 28.219

Specification Conditions

GRAS Sound & Vibration reserves the right to change specifications and accessories without notice.